[BUG] Author mention is @web-flow in issues instead of committ user, when the commit was "verified"

[michael-vonkeitz-GY]

Describe the bug
When the parameter tag-committer is set, and an issue for a stale branch is created, where the last commit has the "Verified" from github, then not the actual committer is mentioned in the issue, but @web-flow. This is a problem, because then the actual committer is not informed about the issue.

To Reproduce
Steps to reproduce the behavior:

1. Create a branch and do a verified commit
2. set up the stale-branches workflow to identify the branch as stale and set parameter tag-committer to true
3. run the workflow and find the new issue created, where @web-flow is mentioned in the issue comment.

Expected behavior
The actual committer account should be mentioned, instead of @web-flow

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 90 days.